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unknown user pushed a change to branch release_50 in repository llvm.

from 1368f4044e6 Merging r312509: new 54049c8506b Merging r323155: ------------------------------------------ [...] new b4b2cc0cca3 Merging r323915: ------------------------------------------ [...]

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Summary of changes: include/llvm/CodeGen/Passes.h | 3 + include/llvm/CodeGen/TargetPassConfig.h | 7 + include/llvm/InitializePasses.h | 1 + include/llvm/Target/TargetLowering.h | 2 +- include/llvm/Target/TargetSubtargetInfo.h | 3 + lib/CodeGen/CMakeLists.txt | 1 + lib/CodeGen/CodeGen.cpp | 1 + lib/CodeGen/IndirectBrExpandPass.cpp | 221 ++++++++++++++++++ lib/CodeGen/TargetPassConfig.cpp | 3 + lib/CodeGen/TargetSubtargetInfo.cpp | 4 + lib/Target/X86/CMakeLists.txt | 1 + lib/Target/X86/X86.h | 4 + lib/Target/X86/X86.td | 21 ++ lib/Target/X86/X86AsmPrinter.h | 1 + lib/Target/X86/X86FastISel.cpp | 4 + lib/Target/X86/X86FrameLowering.cpp | 9 + lib/Target/X86/X86ISelDAGToDAG.cpp | 6 +- lib/Target/X86/X86ISelLowering.cpp | 123 ++++++++++ lib/Target/X86/X86ISelLowering.h | 6 + lib/Target/X86/X86InstrCompiler.td | 16 +- lib/Target/X86/X86InstrControl.td | 31 ++- lib/Target/X86/X86InstrInfo.td | 2 + lib/Target/X86/X86MCInstLower.cpp | 8 + lib/Target/X86/X86RetpolineThunks.cpp | 311 +++++++++++++++++++++++++ lib/Target/X86/X86Subtarget.cpp | 2 + lib/Target/X86/X86Subtarget.h | 14 ++ lib/Target/X86/X86TargetMachine.cpp | 10 + test/CodeGen/X86/O0-pipeline.ll | 2 + test/CodeGen/X86/retpoline-external.ll | 166 ++++++++++++++ test/CodeGen/X86/retpoline.ll | 363 ++++++++++++++++++++++++++++++ test/Transforms/IndirectBrExpand/basic.ll | 63 ++++++ tools/opt/opt.cpp | 1 + 32 files changed, 1398 insertions(+), 12 deletions(-) create mode 100644 lib/CodeGen/IndirectBrExpandPass.cpp create mode 100644 lib/Target/X86/X86RetpolineThunks.cpp create mode 100644 test/CodeGen/X86/retpoline-external.ll create mode 100644 test/CodeGen/X86/retpoline.ll create mode 100644 test/Transforms/IndirectBrExpand/basic.ll